Question

If a ray of light strikes a pane of glass at 45 degrees to the normal, it

Answer 1

If a ray of light strikes a plane of glass at 45 degrees to the normal after reflection it reflects with the angle of 45⁰ again.

• Reflection:- When the light ray falls on the smooth, rough or polished surface it bounces back with the same angle equal to the angle of incident light.

There are two laws of reflection :-

1. The angle of incident ray is equal to the angle of reflected ray i.e. Angle i = angle r
2. The angle of incidence, angle of Reflection and the normal all lies in the same plane.

So, The Correct Answer is:- it bounces back at 45⁰ angle.